1/2" Inch Drive Female Impact Dr To 1/4" Snap Hex Bit Screwdriver Bit Adaptor 1/2 INCH DRIVE FEMALE IMPACT DR TO 1/4" SNAP HEX BIT" SCREWDRIVER BIT ADAPTOR Specification Brand New! 1/2",Square Drive To 1/4" Hex Drive Hex Shank Adapter." Features: Convert Your 1/2 Drive Power Or Air Tools" Into A 1/4 Hex Shank Driver Quick Release Impact Socket"